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reflect: document DeepEqual(nil map, empty non-nil map) behavior

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Fixes #16531.

Change-Id: I41ec8123f2d3fbe063fd3b09a9366e69722793e5
Reviewed-on: https://go-review.googlesource.com/31355
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Russ Cox 2016-10-18 11:01:54 -04:00
parent 6c295a9a71
commit 4c1995f95b
1 changed files with 3 additions and 2 deletions
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5
src/reflect/deepequal.go
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@ -142,8 +142,9 @@ func deepValueEqual(v1, v2 Value, visited map[visit]bool, depth int) bool {
//
// Interface values are deeply equal if they hold deeply equal concrete values.
//
// Map values are deeply equal if they are the same map object
// or if they have the same length and their corresponding keys
// Map values are deeply equal when all of the following are true:
// they are both nil or both non-nil, they have the same length,
// and either they are the same map object or their corresponding keys
// (matched using Go equality) map to deeply equal values.
//
// Pointer values are deeply equal if they are equal using Go's == operator